Anderson sonander



(No Model.)

A. SNANDBR.

SLIDING VISE.

No. 597,334. Patented Jan. 11, 1898.

UNITED STATES lnTnnT rrron.

ANDERSON'SONANDER, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO .IOIIN A. HAGBERG, OF SAME PLACE.

SLlDlNG VISE..

SPECIFICATION forming part of Letters Patent No. '597,334, dated January 11, 1898.

Application filed December 16, 1896. Serial lilol 615,841. (No model.)

. the following to be a full, clear, and exact description of the invention, such as will en able others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in sliding vises of the class in which the movable jaw is moved by hand until it impinges on the article to be held, and then a toothed part is thrown into engagement with the screwbolt, by which the clamping is eiected; and the invention consists in the construction and novel combination of parts hereinafter described, pointed out in the appended claims, and illustrated in the accompanying drawings, in which Figure l is a longitudinalsection of a vise provided with my improvement. Fig. 2 is a cross-section of Fig. l, taken on the line 2 2, showing the device in normal position. Fig. 3 is a cross-section of the deviee,showing the screw-bolt released from engagement with the toothed parts; and Fig. 4 is a detail of an end view of Fig. l.. Fig. 'is adetail of the calnrod and sliding frame.

Similar numerals ot' referencerefer to similar parts throughout the several views.

.My invention consists in the construction. of means whereby the screw-bolt is normally held between two toothed parts, one above and the other below, ixedly, so that the two toothedparts form substantially a nut in their mode vof operation, thereby preventing the screw-bolt and the toothed parts from springing out of engagement partially or wholly and preserving the -integrity of the threads. rFhis I claim is anew result as well as new means therefor.

In the drawings, numeral 6 designates the fixed jaw of a vise of, the class named; numeral 5, the movable jaw in which the screwbolt 7 operates, connected with its sliding extension 8.

Numeral 9 designates the lower part of the iXed jaw (i or frame of the vise.V A Xed block 10 passes up through an opening in the frame 9 and is provided with an opening through which the screw-bolt '7 passes freely. In my device I provide a space in this fixed block l0, in which l place a sliding frame 1l and adapt the parts so it has a vertical movement only in the block l0. This sliding frame, preferably made with parallel sides and circular ends, as shown in the drawings, Figs. 2 and 3, is provid ed on its upper inner edge with teeth l2, adapted to engage the teeth of the screw-bolt 7, and on its lower end with a seat` 13 for the cam 14 to rest on when the parts are in normal position. The purpose of this seat is to aid the spring l5 to hold the cam steadily in'the position shown in Fig. 2. I also provide means for the engagement of the cam le with the sliding frame ll, whereby the cam may be operated to raise it. Such means are preferably a projection 1G, located near the lower part of the frame 1l, so as to engage one end or edge of the cam 14, whereby the frame 1l is raised a suiicient distance to lift the teeth 12 up out of engagement with the screw 7. Within this sliding frame 1l I place a toothed part 17 and adapt the parts to permit it to have a vertical movement. This toothed part I7 is preferably of the form shown in the drawings, consisting of ahalfnut having a projection against which the cam 14: operates, as shown inFig. 2, and when it is released, as shown in Fig. 3, the toothed part 17 drops out of engagement with the screw-bolt 7 by gravity. The cam 14 is a bar cam-shaped in cross-section, as shown in Figs. 2 and 3. It is provided with a circular eXtension 18, which passes through an end piece 19, attached to the front end of the movable jaw, and a handle 2O for operating is attached, as shown. Around this circular extension 18 I place a coiled spring l5, one end of which is secured to the end piece i9 and the other end is secured to the cam le and is adapted to vhold the cam le in normal position, as shown in Fig. 2.

The mode of operation is as follows: The normal position of the device is to hold the upper and lower toothed parts l2 and 17 in engagement with the screw-threads of the IOO screw-bolt 7, as shown in Fig. 2. Inthis position the movable jaw ofthe device can be moved only by the operation of the bolt. When the operator Wishes to place an article inV the vise, he presses the handle 2O down, thereby operating the cam to raise the teeth 12 and release the toothed part 17, whereby one is raised up and the other drops down out of engagement with the screw-bolt, leaving the bolt free to move in the block 10. He then manually moves the jaw 5, with its attached screw-bolt,y in or out of the vise until the article can be easily placed in the vise. I-Ie then releases the handle, and the spring 15 turns the cam immediately back to the position shown in Fig. 2, thereby throwing the toothed partsagain into engagement. The operator then turns the bolt a slight distance and clamps the article in place.

vided With a projection for lifting it and also with a seat for the edge of a cam on its lower inner part adapted to form a eateh to hold the cam in place when in vertical position: a lower half-nut sliding in said frame and provided With an extension for the impingement of a cam: andan operating-rod passing through said sliding frame formed into a double cam in cross-section in that part thereof Which slides through said frame and adapted to'operate said half-nuts as described'.

2. In a vise of the class named, the combination with the vise-screw of a sliding frame in the fixed part of the vise, its upper part provided With an upper half-nut and also With a projection for lifting it: a lower half-nut sliding in said frame and provided with an extension for the impingement of a cam: and an operating-rod passing through said frame formed into a double cam in that part thereof which slides through the frame and adapted to operate the half-nuts as described.

In testimony whereof I affix my signature in presence of two Witnesses.

ANDERSON SONANDER.

Witnesses:

LAURA CoLLINs, M. A. SACKSTEDER. 

